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Broadband absorbing bulk heterojunction photovoltaics using low-bandgap solution-processed quantum dots.
- Kevin M. Noone, E. Strein, N. Anderson, Pei-Tzu Wu, S. Jenekhe, D. Ginger
- Chemistry, Materials ScienceNano letters (Print)
- 29 June 2010
BHJ solar cells containing blends of colloidal PbS nanocrystal quantum dots with several new donor-acceptor conjugated polymers exhibit power conversion efficiencies 10-100 times larger than previously reported BHJ blends made with IR-absorbing quantum dots.
Regioregular Poly(3-pentylthiophene): Synthesis, Self-Assembly of Nanowires, High-Mobility Field-Effect Transistors, and Efficient Photovoltaic Cells
- Pei-Tzu Wu, H. Xin, F. S. Kim, Guoqiang Ren, S. Jenekhe
- Materials Science
- 26 October 2009
We report the synthesis, characterization, solution-phase assembly of nanowires, field-effect charge transport, and photovoltaic properties of regioregular poly(3-pentylthiophene) (P3PT), the first…
Crystalline Diblock Conjugated Copolymers: Synthesis, Self-Assembly, and Microphase Separation of Poly(3-butylthiophene)-b-poly(3-octylthiophene)
- Pei-Tzu Wu, Guoqiang Ren, Chaoxu Li, R. Mezzenga, S. Jenekhe
- Chemistry, Materials Science
- 6 March 2009
the 1 H NMR spectra (Figure S1), based on the terminal methyl groups of the butyl and octyl side chains which showed resonances at 1.0 and 0.9 ppm, respectively. The regioregularity of both BO…
Phenothiazine-phenylquinoline donor-acceptor molecules: effects of structural isomerism on charge transfer photophysics and electroluminescence.
- A. Kulkarni, Pei-Tzu Wu, T. Kwon, S. Jenekhe
- ChemistryThe journal of physical chemistry. B
- 30 September 2005
The results demonstrate the pronounced influence of the donor/acceptor connection on the charge-transfer emission efficiency of donor-acceptor molecules and the performance of solid-state light-emitting devices based on them.
New Ambipolar Organic Semiconductors. 1. Synthesis, Single-Crystal Structures, Redox Properties, and Photophysics of Phenoxazine-Based Donor−Acceptor Molecules
- Yan Zhu, A. Kulkarni, Pei-Tzu Wu, S. Jenekhe
- Chemistry
- 4 June 2008
We report the synthesis and structural, photophysical, and electrochemical properties of a series of eight new phenoxazine-based donor−acceptor molecules utilizing phenoxazine as a common donor and…
Dithienopyrrole–quinoxaline/pyridopyrazine donor–acceptor polymers: synthesis and electrochemical, optical, charge-transport, and photovoltaic properties
- Xuan Zhang, J. Shim, S. Marder
- Chemistry
- 15 March 2011
Soluble alternating copolymers of N-(3,4,5-tri-n-dodecyloxyphenyl)dithieno[3,2-b:2′,3′-d]pyrrole donor groups and 2,3-di-n-decylquinoxaline, 2,3-di-n-decylpyrido[3,4-b]pyrazine,…
New Ambipolar Organic Semiconductors. 2. Effects of Electron Acceptor Strength on Intramolecular Charge Transfer Photophysics, Highly Efficient Electroluminescence, and Field-Effect Charge Transport…
- A. Kulkarni, Yan Zhu, A. Babel, Pei-Tzu Wu, S. Jenekhe
- Chemistry
- 4 June 2008
Substantial variations (up to factors of 5) were observed in the intramolecular charge-transfer (ICT) fluorescence quantum yields and electroluminescence efficiencies among a series of emissive…
Organometallic Donor−Acceptor Conjugated Polymer Semiconductors: Tunable Optical, Electrochemical, Charge Transport, and Photovoltaic Properties
- Pei-Tzu Wu, Tricia Bull, F. S. Kim, C. Luscombe, S. Jenekhe
- Chemistry, Materials Science
- 13 January 2009
A series of 11 organometallic conjugated polymer semiconductors bearing a platinum (Pt) center have been synthesized and their electronic band structures, field-effect charge transport, and use in…
Conjugated Donor-Acceptor Copolymer Semiconductors. Synthesis, Optical Properties, Electrochemistry, and Field-Effect Carrier Mobility of Pyridopyrazine-Based Copolymers
- Pei-Tzu Wu, F. S. Kim, R. Champion, S. Jenekhe
- Materials Science, Chemistry
- 12 September 2008
Five conjugated pyrido[3,4-b]pyrazine-based donor−acceptor copolymers were synthesized by Suzuki and Stille coupling polymerizations, and their photophysical and electrochemical properties and…
Crystalline Random Conjugated Copolymers with Multiple Side Chains: Tunable Intermolecular Interactions and Enhanced Charge Transport and Photovoltaic Properties
- Pei-Tzu Wu, Guoqiang Ren, S. Jenekhe
- Materials Science
- 17 March 2010
Random poly(3-butylthiophene-co-3-octylthiophene) of several compositions were synthesized and found to be highly crystalline in spite of the statistical arrangement of the different-sized side…
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